@article {Ruhnau-et-al-MST07,
	title = {Variational Estimation of Experimental Fluid Flows with Physics-Based Spatio-Temporal Regularization},
	journal = {Measurement Science and Technology},
	volume = {18},
	year = {2007},
	pages = {755-763},
	author = {Ruhnau, P. and Stahl, A. and Schn{\"o}rr, C.}
}
@article {Ruhnau-et-al-05b,
	title = {A variational approach for particle tracking velocimetry},
	journal = {Meas. Science and Techn.},
	volume = {16},
	year = {2005},
	pages = {1449-1458},
	author = {Ruhnau, P. and G{\"u}tter, C. and Putze, T. and Schn{\"o}rr, C.}
}
@article {Ruhnau-et-al-05,
	title = {Variational Optical Flow Estimation for Particle Image Velocimetry},
	journal = {Experiments in Fluids},
	volume = {38},
	year = {2005},
	pages = {21{\textendash}32},
	author = {Ruhnau, P. and Kohlberger, T. and Nobach, H. and Schn{\"o}rr, C.}
}
@incollection {Ruhnau-et-al-04,
	title = {Variational Optical Flow Estimation for Particle Image Velocimetry},
	year = {2004},
	month = {Sept},
	publisher = {Deutsche Gesellschaft f{\"u}r Laser-Anemometrie GALA e.V.},
	chapter = {30},
	address = {Karlsruhe},
	author = {Ruhnau, P. and Kohlberger, T. and Nobach, H. and Schn{\"o}rr, C.},
	editor = {Ruck, B. and Leder, A. and Dopheide}
}
